8 1/2 IADC 637 Kingdream Tricone Rock Dill Bit For Water Well Drilling That Customer Approved
Guangtong company was founded three decades, and always adhere to market-oriented, innovation as a starting point, to provide customers with a more comprehensive product for the drilling industry to reduce costs. Our staff put first-class management, first-class quality, excellent service as our eternal pursuit. The main products are drilling scraper, drill collars, fittings, assembly reamer.
High compressive strength, medium
hard and high abrasive formation, like
limestone, dolomite, sandstone, chert, etc...
Bearing Type: Sealed friction
Journal Angle: 36°
Seal Type: O-ring
Number of Rows: 14
Inner Row Inserts: 79-1/2'Conical
Heel Row Inserts: 45-7/16 Dome
Normal WOBKN/ mm (bit dia.) : 0.70~1.20
Rotary Speed (r/ min) : 70~40
Silve Plated Becu Bushing
Silve Plated Thrust Washer
Aggressive Cutting Structure
Curved circle rows inner teeth.
spherical rows outer teeth
8 1/2 (215.9mm)
Elastomer sealed journal bearing
4 1/2 reg pin
WOB (KN/ mm)
RPM (r/ min)
Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc.
1. High-strength, high flexibility, high temperature, high wear resistance.
2. High-precision metal seal.
3. Locking roller ball, to adapt to high-speed.
4. The use of high strength high toughness carbide teeth.
5. Hours in the rotary cone bit with the impact, crushing and shearing the role of broken rock.
6. Cone bit to adapt to the soft, medium and hard of various stra
Any inquiry is welcomed here .
1) How to send money to us ?
We can send you our bank account information after the contract is made . By T/ T , Western union ....
2) What is the MOQ ?
Small trial order is acceptable , like 1pc, 2 pcs....
3) Inspection is possbile ?
Yes, you are welcome to our company at any time or you can make inspection through Third inspection agent , like SGS .
BV and so on .
4) How to transport the bits ?
By sea , by air , by DHL, by UPS and so on ....
Do you have any questions ? Please don't hesitate to ask me and you will get the satisfactory response once you contact us .